Special features: Additional scenes ; featurettes and production diaries ; The hidden secrets of Harry Potter; explore all the movies in the series for clues to the mystery of Harry's true destiny ; Trailing Tonks: Natalia Tena (aka Nymphadora Tonks) leads a personal film set tour ; Harry Potter: the magic of editing ; interview with director David Yates and editor Mark Day.

Abstract:

Lord Voldemort has returned, but the ministry of Magic is doing everything it can to keep the wizarding world from knowing the truth. They appoint Ministry official Dolores Umbridge as the new Defense Against the Dark Arts professor at Hogwarts. When Umbridge refuses to teach practical defensive magic, Ron and Hermione convince Harry to secretly train a select group of students for the wizarding war that lies ahead. A terrifying showdown between good and evil awaits.